Merging Dev into Master

.eslintrc

@@ -0,0 +1,4 @@
+{
+  "extends": "airbnb",
+  "root": true
+}

.gitignore

@@ -1,3 +1,5 @@
 node_modules
 .eslintrc.js
-package-lock.json
+package-lock.json
+settings.json
+.DS_Store

Main.js

@@ -1,84 +1,169 @@
-const { app, BrowserWindow, ipcMain } = require('electron');
+// node requirements
+const {
+  dialog, app, BrowserWindow, ipcMain,
+} = require('electron');
 const fs = require('fs');
 const path = require('path');
 const connectSQL = require('./model/sql-connect');
 const connectMongoose = require('./model/mongoose-connect');
 const CommunicationSchema = require('./model/mongoose-communicatonSchema');
 const HealthInfoSchema = require('./model/mongoose-healthInfoSchema');
 
+// declare a variable pool for SQL connection
+let pool;
+
+// declare win variable ---> Ousman
 let win;
+
+// declaring a createWindow function ---> Ousman
 function createWindow() {
+  // assign win to an instance of a new browser window.
   win = new BrowserWindow({
+    // giving our window its width
     width: 900,
+    // giving our window its hieght
     height: 800,
+    // specify the path of the icon -- Which icon is this?.. note too tsure --> Ousman
     icon: path.join(__dirname, 'app/assets/icons/icon.png'),
+    // enable node inegreation --> node intgeration, default is usally false --> Ousman
     webPreferences: {
       nodeIntegration: true,
     },
   });
 
   // Development
+  // loads our application window to localHost 8080, application will not render without this loadUrl -->  Ousman
   win.loadURL('http://localhost:8080/');
 
   // Production
   // win.loadURL(`file://${path.join(__dirname, './dist/index.html')}`);
 
+  // assign window to null on close and set splash property in settings.json back to true so splash page renders on restart
   win.on('closed', () => {
-    win = null;
+    const state = JSON.parse(
+      // read json from settings.json
+      fs.readFileSync(path.resolve(__dirname, './user/settings.json'), {
+        encoding: 'UTF-8',
+      }),
+    );
+    // reassign state.splash
+    state.splash = true;
+    fs.writeFileSync(path.resolve(__dirname, './user/settings.json'), JSON.stringify(state), { encoding: 'UTF-8' }); win = null;
   });
 }
+
+// invoke createWindow function on Electron application load --> Ousman
 app.on('ready', createWindow);
 
+//  quits the application when all windows are closed --> Ousman
 app.on('window-all-closed', () => {
+  console.log('window-all-closed message received');
+  const state = JSON.parse(
+    // read json from settings.json
+    fs.readFileSync(path.resolve(__dirname, './user/settings.json'), {
+      encoding: 'UTF-8',
+    }),
+  );
+  // reassign state.splash
+  state.splash = true;
+  fs.writeFileSync(path.resolve(__dirname, './user/settings.json'), JSON.stringify(state), { encoding: 'UTF-8' });
+  // process platform is a property that return a string identifying the OS platform on which NodeJs process is running --> Ousman
   if (process.platform !== 'darwin') {
+    // quits application
     app.quit();
   }
 });
 
+// event 'activate' emmitted upon application starting
 app.on('activate', () => {
+  // if there is no window present invoke the create window function --> Ousman
   if (win === null) {
     createWindow();
   }
 });
 
+// Fired by the useEffect hook inside of the Splash.jsx component, this message route will toggle
+// splash property inside of settings.json to false once the Splash page renders itself just once
+ipcMain.on('toggleSplash', (message) => {
+  //console.log('toggleSplash message received');
+  const state = JSON.parse(
+    // read json from settings.json
+    fs.readFileSync(path.resolve(__dirname, './user/settings.json'), {
+      encoding: 'UTF-8',
+    }),
+  );
+  // reassign state.splash to false
+  state.splash = false;
+
+  // overwrite settings.json with false splash property
+  fs.writeFileSync(path.resolve(__dirname, './user/settings.json'), JSON.stringify(state), { encoding: 'UTF-8' });
+
+  message.returnValue = state.splash;
+});
+
+ipcMain.on('checkSplash', (message) => {
+  //sconsole.log('checkSplash message received');
+  const state = JSON.parse(
+    // read json from settings.json
+    fs.readFileSync(path.resolve(__dirname, './user/settings.json'), {
+      encoding: 'UTF-8',
+    }),
+  );
+
+  message.returnValue = state.splash;
+});
+
 // Load settings JSON and returns current setup status back to the render process.
+// ipc 'setup' route -->  Ousman
 ipcMain.on('setup', (message) => {
+  //console.log('setup message received');
+  // assigns state to the returned the object returned from settings.json -->  Ousman
   const state = JSON.parse(
+    // read json from settings.json
     fs.readFileSync(path.resolve(__dirname, './user/settings.json'), {
       encoding: 'UTF-8',
     }),
   );
+  // destructure setupRequired from state constant ---> Ousman
   const { setupRequired } = state;
+  // assigning message object a property of return value and assigning it the setupRequired from state destructuring --> Ousman
   message.returnValue = setupRequired;
 });
 
 // Loads existing settings JSON and update settings to include new services entered by the user.
+// on ipc 'submit' request --> Ousman
 ipcMain.on('submit', (message, newService) => {
+  // Declares a variable state and initialize it to the returned parsed json object from the user/settings.json file
   const state = JSON.parse(
     fs.readFileSync(path.resolve(__dirname, './user/settings.json'), {
       encoding: 'UTF-8',
     }),
   );
-  // if statement is used to replace hard coded data. Hard coded data and the michelleWasHere key is needed to avoid a load error caused by Electron querying the database before a user has added or selected a database.
-  if (state.michelleWasHere) {
+
+  // Checks if setup is required by checking if the value for the state key 'setupRequired' is true 
+  if (state.setupRequired) {
+    // If setup is required, the value for key 'setupRequired' is reassign to false and the value for key 'services' is reassign to an array with newService as its only element
     state.setupRequired = false;
-    state.michelleWasHere = false;
     state.services = [JSON.parse(newService)];
-    fs.writeFileSync(path.resolve(__dirname, './user/settings.json'), JSON.stringify(state));
   } else {
-    state.setupRequired = false;
+    // Else the newService is pushed into the services array
     state.services.push(JSON.parse(newService));
-    fs.writeFileSync(path.resolve(__dirname, './user/settings.json'), JSON.stringify(state));
-  }
+  } 
+
+  // Rewrites user/settings.json to show state
+  fs.writeFileSync(path.resolve(__dirname, './user/settings.json'), JSON.stringify(state));
 });
 
 // Load settings JSON and returns updated state back to the render process.
+// on ipc 'dashboard' request --> Ousman
 ipcMain.on('dashboard', (message) => {
+  // Declares a variable state and initialize it to the returned parse json object from the user/settings.json file
   const state = JSON.parse(
     fs.readFileSync(path.resolve(__dirname, './user/settings.json'), {
       encoding: 'UTF-8',
     }),
   );
+  // destructure services from state... what is services? --> Ousman
   const { services } = state;
   const dashboardList = services.reduce((acc, curVal) => {
     acc.push(curVal[0]);
@@ -87,48 +172,94 @@ ipcMain.on('dashboard', (message) => {
   message.returnValue = dashboardList;
 });
 
+// Deletes the service at position 'index' from the services array within the user/setting.json file,
+// resets the user/setting.json file to what it was originally if all of the services are deleted,
+// and sends the remaining services back to onDelete function within DeleteService as a response
+ipcMain.on('deleteService', (message, index) => {
+  // Declares a variable state and initialize it to the returned parse json object from the user/settings.json file
+  let state = JSON.parse(
+    fs.readFileSync(path.resolve(__dirname, './user/settings.json'), {
+      encoding: 'UTF-8',
+    }),
+  );
+
+  // Send a response back with the updated services
+  const { splash } = state;
+// Checks if there is more than one services in the services array
+  if (state.services.length > 1) {
+       // If true, removes the service at position 'index'
+    state.services.splice(index, 1);
+  } else {
+      // Else reassign state to what the user/setting.json file was originally before any database was save
+    state = { setupRequired: true, services: ['hard', 'coded', 'in'], splash };
+  }
+
+  // Rewrites json from settings.json
+  fs.writeFileSync(path.resolve(__dirname, './user/settings.json'), JSON.stringify(state), { encoding: 'UTF-8' });
+  message.sender.send('deleteResponse', state.services);
+});
+
+
 // Queries the database for communications information and returns it back to the render process.
 ipcMain.on('overviewRequest', (message, index) => {
-  const databaseType = JSON.parse(
+  console.log('hello from overview request');
+  const { services } = JSON.parse(
     fs.readFileSync(path.resolve(__dirname, './user/settings.json'), { encoding: 'UTF-8' }),
-  ).services[index][1];
+  );
+
+  const databaseType = services[index][1];
+  const URI = services[index][2];
 
   if (databaseType === 'MongoDB') {
-    connectMongoose(index);
+    connectMongoose(index, URI);
     CommunicationSchema.find({}, (err, data) => {
       if (err) {
         console.log(`An error occured while querying the database: ${err}`);
         message.sender.send('overviewResponse', JSON.stringify(err));
       }
+
       const queryResults = JSON.stringify(data);
       // Asynchronous event emitter used to transmit query results back to the render process.
       message.sender.send('overviewResponse', queryResults);
     });
   }
 
   if (databaseType === 'SQL') {
-    const pool = connectSQL(index);
+    pool = connectSQL(index, URI);
     const getCommunications = 'SELECT * FROM communications';
     pool.query(getCommunications, (err, result) => {
       if (err) {
-        console.log(err);
+        // error object to log to Electron GUI ---> Ousman
+        const errorAlert = {
+          type: 'error',
+          title: 'Error in Main process',
+          message: 'Database information could not be retreived. Check that table exists.',
+        };
+
+        // after requiring dialog in the topmost section of main. We invoke the method showMessagebox passing the error object we created --> Ousman
+        dialog.showMessageBox(errorAlert);
+
+
         message.sender.send(JSON.stringify('Database info could not be retreived.'));
+      } else {
+        console.log('Connected to SQL Database');
+        const queryResults = JSON.stringify(result.rows);
+        // Asynchronous event emitter used to transmit query results back to the render process.
+        console.log('ipcMain about to send overviewResponse message');
+        message.sender.send('overviewResponse', queryResults);
       }
-      const queryResults = JSON.stringify(result.rows);
-      // Asynchronous event emitter used to transmit query results back to the render process.
-      message.sender.send('overviewResponse', queryResults);
     });
   }
 });
 
 // Queries the database for computer health information and returns it back to the render process.
 ipcMain.on('detailsRequest', (message, index) => {
+  console.log('detailsRequest message received');
   const databaseType = JSON.parse(
     fs.readFileSync(path.resolve(__dirname, './user/settings.json'), { encoding: 'UTF-8' }),
   ).services[index][1];
 
   if (databaseType === 'MongoDB') {
-    connectMongoose(index);
     HealthInfoSchema.find({}, (err, data) => {
       if (err) {
         message.sender.send('detailsResponse', JSON.stringify(err));
@@ -140,15 +271,16 @@ ipcMain.on('detailsRequest', (message, index) => {
   }
 
   if (databaseType === 'SQL') {
-    const pool = connectSQL(index);
     const getHealth = 'SELECT * FROM healthInfo';
     pool.query(getHealth, (err, result) => {
       if (err) {
         message.sender.send('detailsResponse', JSON.stringify('Database info could not be retreived.'));
       }
       const queryResults = JSON.stringify(result.rows);
       // Asynchronous event emitter used to transmit query results back to the render process.
+      // console.log('healthInfo data about to comeback');
       message.sender.send('detailsResponse', queryResults);
     });
   }
 });
+